JLG Parts O-Ring is used on various JLG Telehandler(Rough Terrain Forklift) Machines. This O-ring sits behind Solenoid End Cap creating a seal between it and each of the Function Valve Assemblies on the Main Control Valve. There are two O-rings used behind each solenoid end cap. Model Use: 7013, 7013H, 742, 8010, 8010H, 943, 1043, 1055, 1255, 1075, 1644, 1732, 2733, 12010, 4523, G15-44A. Please ensure proper model and serial break before parts purchase.